Wire-twisting machine



N0. 6l9,7 82. v Patented Feb. 2|, I899. LA' VERNE' w. NOYES.

WIRE TWISTING MACHINE.

(Application med Oct. 26, 1898.) (No' Model.) 2 sheets-sheet I.

W n i imni W no. 6l9,782. Patented Feb. 2|, I899. LA vznus w. NOYES.

WIRE TWISTING MACHINE.

(Application filed Oct. 26, 1898.)

(No Model.)

2 Sheets-Sheet 2.

UNITED STATES ATENT Fries.

LA VERNE WV. NOYES, OF CHICAGO, ILLINOIS.

WIRE-TWISTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 619,782, dated February21, 1899. Application filed October 26, 1898. Serial No. 694,588. (Nomodel.)

To all whom it may concern.-

Be it known that 1, LA VERNE W. NoYEs, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Wire-Twisting Machines,of which the following is a full, clear, concise, and exact description,reference being had to the accompanying drawings, forming a part of thisspecification.

My invention relates to a wire-twisting machine, my object being toprovide a machine whereby a plurality of wires or strands may be twistedtogether.

In accordance with my invention I provide a pair of grippers eachadapted to engage and hold in position the several strands or wireswhich are to be twisted together, said grippers being capable ofrelative rotation to thereby twist the wires, and being capable also ofseparating or moving apart as the twisting progresses, one of saidgrippers be ing arranged to permit the individual wires or strands tomove longitudinally as the twisting progresses. In practice I havemounted one of the grippers in a stationary position and have mountedthe other upon a rotating shaft capable of a longitudinal movement,

whereby the gripper carried thereon may be caused to recede from thestationary gripper during the progress of twisting or coiling the wirestogether. The gripper through which the individual wires are capable ofbeing longitudinally moved may be mounted stationary or may be held uponthe rotating shaft.

I have illustrated my invention in the accompanying drawings, in which-Figure 1 is a plan view of the machine embodying my invention. Figs. 2and 3 are side and end views, respectively, of the rotating gripper.Figs. 4 and 5 are side and end views, respectively, of the stationarygripper. Figs. 6 and 7 are side and end views, respectively, of thegripper adapted to twist three strands or wires. Fig. 8 is a plan viewof a modifica tion wherein the stationary gripper is arranged to permitthe wires to slide longitudinally therethrough. Fig. 9 is a side view ofthe rotating gripper shown in Fig. 8. Fig. 10 is a side view of thestationary gripper shown in Fig. 8. Fig. 11 is a View of the machine inelevation.

Like letters refer to like parts in the several figures.

The stationary gripper a is mounted upon a bracket a in any suitablemanner, the bracket being shown in the present instance as supportedupon the base-plate (1 which also carries a bracket upon which issupported a sleeve a in which a shaft b is journaled, the shaft beingcapable of longitudinal movement within the sleeve and having a crank orhandle I) or other suitable means for r0- tating the same. Upon the endof the shaft 1) the gripper c is provided, having a pair of channels 0 0adapted to receive the strands d d of the wires which are to be twistedtogether. The channels 0 c are arranged at an angle to the axis of theshaft 12, the angle being determined by the closeness desired for theturns of the twisted wires. The greater the angle between the axes ofthe channels 0 c the less will be the pitch of the turns of the twistedwires, and the less the angle between the axes of the channels 1: c thegreater will be the pitch of the turns of the twisted wires. By thusvarying the angles of the channels twisted wires of any desired pitch orcloseness of the twist may be secured. The stationary gripperaisprovided with any suitable arrangement for grasping and holding the endsof the wires or strands in position. As shown in Figs. 4 and 5, thestationary gripper a is provided with channels a a within which thewires or strands are adapted to rest, whereby the ends of the strandsare firmly held against movement in one direction, while movement in theopposite direction will permit the withdrawal of the ends of the wiresfrom the gripper.

When it is desired to twist two wires or strands together by means ofthe machine above described, the wires d d are passed through thechannels 0 c of the rotating gripper a, and the ends thereof areinserted in the channels a a of the stationary gripper a. The gripper cis then rotated through the agency of the handle I), and the wires orstrands are twisted together, the shaft 1) partaking of a longitudinalmovement through its bearingsleeve 0. as the twisting progresses. The

wires (1 (1 move longitudinally through the channels 0 c in the rotatinggripper c. It will be noted that the individual wires are capable ofrotation upon their respective axes within the channels 0 c as thetwisting progresses, so that the individual strands are not subjected totorsion about their own axes, as is the case when several wires orstrands are grasped at the opposite ends, as in a pair of Vises, andtwisted together. Due to the fact that the individual strands are thuscapable of rotation about their individual axes, a stronger and moreuniformly-constructed coil or twist results.

Instead of twisting together two wires or strands, as shown in Fig. 1,three or any greater number of strands may be twisted together byproviding suitable grippers, as shown in Figs. 6 and 7, having therequired number of channels for the plurality of strands which are to betwisted together.

It is immaterial which of the two grippers is provided with the channelsthrough which the individual wires longitudinally slide, and therotating gripper may be provided with such channels as shown in Fig. 1,or, as shown in Fig. 8, the stationary gripper 6 may be provided withthese channels, while the rotating gripper e is provided with thegripper for stationarily holding the ends of the strands to the gripper.In Figs. 8 and 9 the rotating gripper mounted upon the shaft Z) takesthe form of a head f, carrying a slot f, through which passes a pin fthe pin being adapted to pass through the loop g, formed by bending awire upon itself to form the pair of strands g 9 This is but onespecific form of gripper and instead thereof the gripper a of Fig. 1 orany other suitable gripper may be employed. The stationary gripper 6comprises a pair of plates 8 6 between which are formed the channels 6 efor the strands, the plates being adapted to be clamped together bymeans of a wedge e adapted to pass through the eye of a staple c,secured to the lower plate and passing through the upper plate.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. In combination, a pair of grippers, relativel y rotatable and capableof separation one from the other, one of said grippers being arranged topermit the individual wires or strands to move longitudinallytherethrough, substantially as described.-

2. In combination, a pair of grippers, one held stationary and the othermounted to rotate and capable of a movement away from the stationarygripper, one of said grippers being arranged to permit the individualwires or strands to move longitudinally therethrough, substantially asdescribed.

3. In combination, a pair of grippers, a retatable shaft upon which oneof said grippers is mounted, a bearing or sleeve for said shaftpermitting the same to move axially therethrough, one of said grippersbeing arranged to permit the individual wires or strands to movelongitudinally therethrough, substantially as described.

4. In combination, a pair of relatively-rotatable grippers capable ofseparation one from the other, a plurality of channels or seats beingprovided in one of said grippers permitting the individual wires orstrands to move longitudinally therethrough, the axes of said channelsor seats being oblique to the axis of rotation of the grippers,substantially as described.

In witness whereof I have hereunto subscribed my name in the presence oftwo witnesses.

LA VERNE W. NOYES.

Witnesses:

ROBERT M. DYER, W. CLYDE JONES.

